Prevention of Dengue Fever

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Questions and Answers

What is the reported percentage of fatal cases of Sudan ebolavirus?

30%

25%

34% (correct)

40%

What is the name of the disease caused by Sudan ebolavirus?

Viral Hemorrhagic Fever

Ebola Hemorrhagic Fever (correct)

Crimean Congo Fever

Dengue Fever

Which of the following is NOT a preventive measure during an epidemic?

Vaccination

Antiviral medication (correct)

Improved hygiene

Contact tracing

What is the primary means of transmission of Sudan ebolavirus?

Direct contact with infected bodily fluids Signup and view all the answers

What is the reported number of cases of Sudan ebolavirus?

164 Signup and view all the answers

Which of the following is a key aspect of preparedness for an epidemic?

Surveillance and detection Signup and view all the answers

What is the primary mode of transmission of dengue viruses from human to human?

Through the bite of the Aedes aegypti mosquito Signup and view all the answers

What is the outcome of recovery from a dengue infection?

Partial and temporary immunity against other serotypes Signup and view all the answers

What is the primary method of transmission of yellow fever?

Infected mosquitoes Signup and view all the answers

How do infected travelers contribute to the spread of dengue fever?

By introducing the virus to new areas Signup and view all the answers

What is an effective way to prevent mosquito breeding?

Disposing of solid waste properly and removing artificial habitats Signup and view all the answers

What percentage of the global population is at risk of dengue infection?

50% Signup and view all the answers

What is the estimated number of dengue virus infections per year?

390 million Signup and view all the answers

What is the purpose of active mosquito and virus surveillance?

To monitor the effectiveness of control interventions Signup and view all the answers

What is a personal protection measure against mosquito bites?

Using window screens and repellents Signup and view all the answers

What region bears the highest burden of dengue infections?

Asia Signup and view all the answers

What is a community engagement strategy for preventing dengue fever?

Educating the community on the risks of mosquito-borne diseases Signup and view all the answers

When should personal protection measures against mosquito bites be observed?

During the day, both inside and outside the home Signup and view all the answers

Study Notes

Sudan Ebolavirus

Reported number of cases: 164
Reported number of deaths and percentage of fatal cases: 55 (34%)

Dengue Fever

Caused by enveloped, single-stranded RNA viruses of the Flaviviridae family
Transmission: primarily by mosquito Aedes aegypti, which bites in the daytime
Over 1 billion people are at risk of infection in over 100 countries
Recovery from infection provides lifelong immunity against that serotype, but only partial and temporary cross-immunity to other serotypes

Epidemiology

Estimated 390 million dengue virus infections per year (95% credible interval 284–528 million)
96 million (67–136 million) manifest clinically (with any severity of disease)
3.9 billion people are at risk of infection with dengue viruses
70% of the actual burden is in Asia
About half of the world's population is at risk of dengue with an estimated 100–400 million infections occurring each year

Prevention of Dengue Fever

Preventing mosquito breeding:
- Environmental management and modification
- Disposing of solid waste properly
- Removing artificial man-made habitats that can hold water
- Covering, emptying, and cleaning of domestic water storage containers on a weekly basis
- Applying appropriate insecticides to water storage outdoor containers
Personal protection from mosquito bites:
- Using window screens, repellents, insecticide-treated materials, coils, and vaporizers
- Wearing clothing that minimizes skin exposure to mosquitoes
Community engagement:
- Educating the community on the risks of mosquito-borne diseases
- Engaging with the community to improve participation and mobilization for sustained vector control
Reactive vector control:
- Emergency vector control measures such as applying insecticides as space spraying during outbreaks
Active mosquito and virus surveillance:
- Monitoring and surveillance of vector abundance and species composition
- Prospectively monitoring prevalence of virus in the mosquito population

Yellow Fever

Acute viral hemorrhagic disease transmitted by infected mosquitoes

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Description

Learn about the effective ways to prevent dengue fever, including environmental management, solid waste disposal, and proper water storage container maintenance. Understand the importance of preventing mosquito breeding and reducing the risk of dengue fever. Take this quiz to test your knowledge!